采集

This paper introduces the research and implementation of all-purpose high-speed test adapter for ADC. The main contents includes two methods about how to testing the static parameters and dynamic parameters for ADC. The servo loop method is proposed to static parameters, by using the test principle of high-precision voltage source, high-precision voltage meter and digital comparator. To dynamic parameters, the DDS chip of AD9851 is used to generate sine waves with high signal to noise ratio, then the high-s...

servo loop ； FFT ；本文介绍了关于ADC高速通用测试适配器的研究和实现，主要介绍了测试ADC芯片静态参数和动态参数两种方法，针对静态参数，提出了用伺服环的方法，采用高精度电压源，高精度电压表和数字比较器的测试原理；针对动态参数，提出了用DDS芯片AD9851产生高信噪比的正弦波，采用高速采样模块采集数据，最后用FFT算法对采集的数据进行处理。

This paper introduces a new seismic exploration method-3D Walkaway VSP. As a combination of the 3D seismic exploration method and the VSP technology, it can accomplish the simultaneous data acquisition used to performed by the two methods and so it is fully competent in refined petroleum exploration.

介绍了一种新的地震勘探技术－三维井地联合Walkaway VSP技术，该技术将三维地震勘探技术和VSP技术有机结合，实现了地面三维地震采集和井下VSP技术联合同步采集，发挥了两种技术的优势，弥补了各自的不足，可应用于油气藏的精细勘探和开发。

Of the collected specimens, Acarina, accounting for 52.21% of total collected individuals in natural forests and 38.59% in plantation-forests respectively, was the dominated group of soil invertebrate taxa in both natural forests and planted forests.

在天然林样方中182个类群均有分布，而人工林中仅见89类群；土壤无脊椎动物个体数方面天然林中共采集土壤无脊椎动物原始个数90201头，而人工林中采集52222头。

Methods Acaroid mites were isolated by Tullgren and Waterflotation in 1440samples, and identified under microscope, then analyzed the data.

方法用光照集螨法和水膜镜检法对采集样本进行粉螨分离，并对采集的粉螨进行分类鉴定、计数和数据分析。

In the microcomputer monitor and control system we often require to acquisit all kinds of analog and digital signals fitstand then use the microcomputer system to process and analysis all kinds of the signals which we have acquisited,after that we can only use the processed and analyzed signals to control the object which we want to control.

在微机测控系统中，经常需要采集各种模拟、数字信号，再利用微机系统对采集到的信号进行分析处理，之后才能利用经过分析处理的信号对控制对象进行控制。

the lcd display character is acquisited by ccd,after analysis with image process and artificial neural network theory,through grid and intersecting lines to pick up the character′s characteristic,recognize lcd display character,provide with a kind of interface for the instruments and equipments which have no standard interface with the computer but have a lcd display.the experiment result shows that the system acquire and recognize lcd display character is very successfully,and high anti-jamming ability.

摘 要：利用ccd对lcd数码显示字符进行采集，在分析图像处理和神经网络理论的基础上，采用网格法与交线特征提取法，对lcd数显字符进行识别，为具有lcd数显而与计算机无标准通信接口的仪器仪表设备提供一种实用的无线接口。实验表明，系统对lcd数显字符采集方便，识别率高，并且抗干扰能力强。中图分类号：tm932；tp216 文献标识码：b

The patient avoided eating food rich of protein for three days and fasting for 12 hours before the blood samples were obtained at 7:00-8:00 in the morning, and had laid on bed for 15 minutes at least, 2ml of the blood samples were taken from median antebrachial vein, put into the heparinized tubles, then centrifugating by 1500/minute for 10 minutes,obtained the plasma from the blood, the plasma sample were kept in -72℃ refrigerator, ELISA method was used to determine the homcysteine level.

患者在标本采集前3天避免食用高蛋白饮食，空腹12小时以上，清晨7：00－8：00采血，采血时平卧位，休息15分钟以上，采集肘正中静脉血2ml，置于肝素抗凝管，以1500转／分离心10分钟后，分离血浆，用酶联免疫吸附法测定各管的HCY含量。

The acquisition method of volatile compounds, from different mechanical damage exent of oriental arborvitae, are the dynamic headspace body of improved air circulation Acquisition Act.

利用改进了的动态顶空气体循环采集法，对受不同程度机械损伤侧柏木释放的挥发物进行了采集粗提，通过热脱附冷阱-气相色谱-质谱联用仪进行了提取分析鉴定。

Based on analyzing and comparing the characteristics of the present cutters, the material characteristics of Arundo Donaxl has tested and analyzed in this paper, and investigated a rotating chain-type saw-tooth cutter for stalks of tall-thick and harder crops , and developed a cutting test system including the rotating chain-type cutting tester system and transportation mechanism and the high-speed photography image collecting and processing system. Arundo Donaxl cutting test has been carried out and the cutting process of the Arundo Donaxl has been photographed on-line by the high-speed photography image collecting system.

本课题在比较分析现有切割器性能特征的基础上，试验分析了芦竹的物料特性；研究了用于高、粗、硬茎秆作物切割的回转链式锯齿形切割器；设计了包括回转链式芦竹切割器、芦竹夹持输送装置和高速摄像图像采集与处理系统的芦竹收割机切割试验系统；对芦竹进行了切割试验，并通过高速摄像图像采集系统在线记录了切割过程；运用自行设计开发的高速摄像分析及其序列图像处理软件，试验分析了影响芦竹切割质量和切割效率的因素。

The main content of this article are the theories of fuzzy control system and data acquisition system for micro aerial vehicle . we can let a aeroplane model aviate with some sensors and one microcontroller , at the same time , the remote control is used .. when the model make a landing , we could get some useful data from the model

在信号采集系统的基础上，对微型飞行器模糊控制系统的具体实现进行了探讨，并分析了单片机与pc机串行通信的方法，进一步强调信号采集系统与模糊控制系统之间综合设计的合理性和必要性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。